Relationship between Sprint, lower limb power, and change of direction speed in adolescents

Mello, Júlio Brugnara; Pinheiro, Eraldo dos Santos; Ferreira, Gustavo Dias; Bergmann, Gabriel Gustavo

doi:10.1590/s1980-65742021012920

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…These results align with some evidence demonstrating that muscle training in children tends to show results from the core to the extremities during the first few months 25 . Furthermore, it is consistent that improvements in power and sprint occur simultaneously, as Mello et al 26 demonstrated that these variables depend on each other, both in children and adolescents.…”

Section: Discussionmentioning

confidence: 68%

Effect of an after-school physical activity program on physical fitness and academic performance of socioeconomically vulnerable children

Morche¹,

Pedretti²,

Mello

2023

Journ. M. Health

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To promote the practice of physical activity (PA) after school hours and verify the effects on the physical fitness and academic performance of children with socioeconomic vulnerability. Methods: The non-randomized experimental study was carried out in a school in a vulnerable area. Eighteen children performed 60 minutes of moderate-vigorous PA and 15 minutes of circuit exercise (muscle and bone strengthening) three times a week. The control group (n=10) only had school physical education as a weekly PA routine. To assess the program's impact, physical aptitude tests (pre-and post-test) were carried out in accordance with the recommendations of PROESP-Br and the School Performance Test, which assesses learning in three categories: reading, writing, and arithmetic. Results: Abdominal strength, flexibility, sprint, and lower limb power increased . Regarding academic performance, the effect was moderate (d-Cohen>0.50) for reading and total scores. The effect size was small (d-Cohen<0.50) for arithmetic and writing. Conclusion: An after-school PA program positively impacts physical fitness and academic performance in socioeconomically vulnerable children. The level of impact varies between small and medium according to different physical fitness capacities. School is an enabling environment for children to meet the World Health Organization PA recommendations.

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Section: Discussionmentioning

confidence: 68%

Effect of an after-school physical activity program on physical fitness and academic performance of socioeconomically vulnerable children

Morche¹,

Pedretti²,

Mello

2023

Journ. M. Health

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“…For agility assessment, we used the 4‐m square test, a field‐based test with good criterion validity ( R 2 = 0.579–0.544 with other agility and change‐of‐direction speed tests data) 29 . The researcher demarcates, with cones, a square with four meters on a side.…”

Section: Methodsmentioning

confidence: 99%

“…For agility assessment, we used the 4-m square test, a field-based test with good criterion validity (R 2 = 0.579-0.544 with other agility and change-of-direction speed tests data). 29 The researcher demarcates, with cones, a square with four meters on a side. At the evaluator's signal, the participant should move at full speed and touch the cone located in the diagonal corner of the square with one hand.…”

Section: Agility Test (M S −1 )mentioning

confidence: 99%

Secular trends in the physical fitness of Brazilian youth: Evidence that fitness is declining for the majority but not for a fit minority

Nevill

Duncan

Gaya

et al. 2023

Scandinavian Med Sci Sports

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BackgroundThere has been a decline in children's physical fitness in recent decades. Such concerns are largely based on evidence from North America, Europe, and Asia. The current study describes the secular trend and variation (spread) in the physical fitness scores of young Brazilians from 2005 to 2022.MethodsThis study is a repeated, cross‐sectional surveillance study (1999–2022). Children and adolescents (n = 65 139; boys = 36 539) participated between 2005 and 2022. In each cohort six physical fitness tests were conducted: (1) 20‐m sprint speed (m s−1), (2) cardio‐respiratory 6‐min run test (m min−1), (3) abdominal strength test (sit‐ups per min), (4) horizontal jump test (cm), (5) the agility test (m s−1), and (6) the medicine ball throw test (cm). Means and distributional characteristics of the population were assessed using ANOVA, ANCOVA adopting BMI as the body‐size covariate, Levene's test of equality‐of‐error variances, and Box and whisker plots.ResultsANOVAs and ANCOVA's identified significant declines in physical fitness over time/year in 5 of the 6 physical fitness variables (e.g., 20‐m sprint speed slope B = −0.018 (m s−1 y−1); 95% CI −0.019 to −0.017; p < 0.001), the only exception being the medicine ball throw test (cm). The Levene's test of equality‐of‐error variances also identified a systematic increase in the variances/standard deviations over time/years.ConclusionsResults provide powerful evidence that children and adolescents' physical fitness is declining, a trend that is also diverging asymmetrically, becoming more extreme in more recent years. The “fit” appear to be getting fitter, but the fitness of the “less‐fit” appears to be declining further. These results have important implications for sports medicine and government policy makers.

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Identifying the key body size and maturity characteristics associated with superior physical fitness performance tests: does one size fit all?

Nevill,

Duncan,

Nobre

et al. 2024

Sport Sci Health

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Relationship between Sprint, lower limb power, and change of direction speed in adolescents

Cited by 4 publications

References 21 publications

Effect of an after-school physical activity program on physical fitness and academic performance of socioeconomically vulnerable children

Effect of an after-school physical activity program on physical fitness and academic performance of socioeconomically vulnerable children

Secular trends in the physical fitness of Brazilian youth: Evidence that fitness is declining for the majority but not for a fit minority

Identifying the key body size and maturity characteristics associated with superior physical fitness performance tests: does one size fit all?

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